Matches 1 - 5 out of 5


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US20090174412 Detection Systems  
An IMS system or the like has dopant contained in a way such that it is only released when needed. The dopant could be contained in a device (50) similar to an ink-jet printer and released as...
US20080048664 Specimen Pretreating Device and Probe Used Therefor  
[PROBLEMS] To prevent a specimen from being diffused by the improper capacity of tubing. [MEANS FOR SOLVING PROBLEMS] This specimen pretreating device comprises a micro scale or nano scale...
US20150028882 Trace Gas Concentration in ART MS Traps  
A method of detecting specific gas species in an ion trap, the specific gas species initially being a trace component of a first low concentration in the volume of gas, includes ionizing the gas...
US20130088238 Differential Current Measurements to Determine ION Current in the Presence of Leakage Current  
An ion chamber provides a current representative of its characteristics as affected by external conditions, e.g., clean air or smoke. A direct current (DC) voltage is applied to the ion chamber at...
US20130154659 Method and Apparatus for Detecting Smoke in an ION Chamber  
A smoke detection sensor ion chamber has a leakage current that is dependent upon the permittivity of the ionized gas (air) in the chamber. Smoke from typical fires is mainly composed of unburned...
Matches 1 - 5 out of 5